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National Stock Number:
5310-00-197-5312
Federal Supply Class:
5310
National Item Identification Number:
001975312
Description:
WASHER,FLAT
Detail:
A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use SHIM. For items fabricated from ceramic or electrically rated materials by specification or industry standards use INSULATOR (1), WASHER. Excludes DISK, VALVE, graphite impregnated and lubricated items.
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Manufacturer Information:
| 1597 | 99185 | EATON CORPORATION | | 3303079 | 55380 | HATCH & KIRK, INC. | | 3303079 | 72915 | GENERAL MOTORS CORP ELECTRO-MOTIVE DIV | | 3376000 | 55380 | HATCH & KIRK, INC. | | 3376000 | 72915 | GENERAL MOTORS CORP ELECTRO-MOTIVE DIV |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.881 INCHES MINIMUM AND 0.901 INCHES MAXIMUM | | OVERALL DIAMETER | 1.224 INCHES MINIMUM AND 1.244 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-C-576 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | COPPER ALLOY OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | THICKNESS | 0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM |
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